difference between "Runtime API Reference" and "Driver API Reference" in the Ref

what is the difference between Runtime API Reference and Driver API Reference in the Reference Manual ?

for example, we have CudaMalloc (p 29) in one, cuMemAlloc (p 177) in the other, Both are : “Allocates count bytes of linear memory on the device and returns in *devPtr a pointer to the allocated memory” ?

I have the answer : :yes:

[indent]CUDA is composed of two APIs:

[indent]Pittsburgh asked: Is cuMemAlloc() the same as cudaMalloc() ?

MisterAnderson42 replied : As far as I know, they are the same.[/indent]
source : http://forums.nvidia.com/lofiversion/index.php?t71057.html

They’re far from the same (cudaMalloc calls cuMemAlloc, sure, but it does a bunch of other stuff too), but that’s neither here nor there…

Well, at at abstract level they essentially do the same thing, that is all I meant. Of course cudaMalloc has all sorts of extra stuff for the whole implicit context creation setup and whatnot.

Also, if you program with the CUDA runtime, I believe you also need to either distribute the runtime with your application, or install the CUDA toolkit/sdk on any machines that want to run the application (though I can’t vouch for this, as I only use my own dev box for CUDA stuff.)